Wagner, P. A. (1914). The diamond fields of Southern Africa: With maps and illustrations ("A greatly enlarged English edition of "Die diamantführenden Gesteine Südafrikas ihr Abbau und ihre Aufbereitung", which appeared in 1909.".). Transvaal Leader.
Chicago Style (17th ed.) CitationWagner, Percy Albert. The Diamond Fields of Southern Africa: With Maps and Illustrations. "A greatly enlarged English edition of "Die diamantführenden Gesteine Südafrikas ihr Abbau und ihre Aufbereitung", which appeared in 1909.". Johannesburg: Transvaal Leader, 1914.
MLA (9th ed.) CitationWagner, Percy Albert. The Diamond Fields of Southern Africa: With Maps and Illustrations. "A greatly enlarged English edition of "Die diamantführenden Gesteine Südafrikas ihr Abbau und ihre Aufbereitung", which appeared in 1909.". Transvaal Leader, 1914.